{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:1997:U6SSIBRCLFMCGJE7E36I565I2T","short_pith_number":"pith:U6SSIBRC","schema_version":"1.0","canonical_sha256":"a7a5240622595823249f26fc8efba8d4f5c1d2534d23ad3a8779a08ff72c18ab","source":{"kind":"arxiv","id":"astro-ph/9712285","version":1},"attestation_state":"computed","paper":{"title":"BeppoSAX observations of PKS 0528+134","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Celotti, A. Comastri, A. Treves, B. Sacco, C.M. Raiteri, C. Perola, E. Massaro, E. Pian, F. Frontera, G. De Francesco, G. Fossati, G.G.C. Palumbo, G. Ghisellini, G. Sobrito, G. Tagliaferri, I.S. Glass, L. Bassani, L. Costamante, L. Lanteri, L. Maraschi, M. Cappi, M. Cavallone, M. Salvati, M. Villata, P. Grandi, P. Padovani, S. Giarrusso, S. Molendi","submitted_at":"1997-12-21T16:39:53Z","abstract_excerpt":"We report on the BeppoSAX observations of the gamma-ray blazar PKS 0528+134 performed in Feb and Mar 1997, during a multiwavelength campaign involving EGRET and ground based telescopes. The source was in a faint and hard state, with energy spectral index alpha=0.48+-0.04 between 0.1 and 10 keV, and [2-10] keV flux of 2.7E-12 erg/cm2/s. No significant variability was observed. The source was detected in the 20-120 keV band by the PDS, with a flux lying slightly above the extrapolation from lower X-ray energies. Comparing this low state with previous higher states of the source, there is an indi"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"astro-ph/9712285","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1997-12-21T16:39:53Z","cross_cats_sorted":[],"title_canon_sha256":"b1775851def2cbc1f8d4814e76de2d33938b97172a17d0bf48148e7f858a43e0","abstract_canon_sha256":"fd2908875dd108ffcecc2d46ca06c707e45f683ef615ac262285037a85418f8a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:40:14.597627Z","signature_b64":"pyTUq/e24T0AXSimXRAKHtPeehLsdbSK73OJ4iBSgcjL4YfDVNPYdwPOm1UH8pTkJPezaqFYwO/vHNSNlz/7Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a7a5240622595823249f26fc8efba8d4f5c1d2534d23ad3a8779a08ff72c18ab","last_reissued_at":"2026-05-18T01:40:14.596952Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:40:14.596952Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"BeppoSAX observations of PKS 0528+134","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Celotti, A. Comastri, A. Treves, B. Sacco, C.M. Raiteri, C. Perola, E. Massaro, E. Pian, F. Frontera, G. De Francesco, G. Fossati, G.G.C. Palumbo, G. Ghisellini, G. Sobrito, G. Tagliaferri, I.S. Glass, L. Bassani, L. Costamante, L. Lanteri, L. Maraschi, M. Cappi, M. Cavallone, M. Salvati, M. Villata, P. Grandi, P. Padovani, S. Giarrusso, S. Molendi","submitted_at":"1997-12-21T16:39:53Z","abstract_excerpt":"We report on the BeppoSAX observations of the gamma-ray blazar PKS 0528+134 performed in Feb and Mar 1997, during a multiwavelength campaign involving EGRET and ground based telescopes. The source was in a faint and hard state, with energy spectral index alpha=0.48+-0.04 between 0.1 and 10 keV, and [2-10] keV flux of 2.7E-12 erg/cm2/s. No significant variability was observed. The source was detected in the 20-120 keV band by the PDS, with a flux lying slightly above the extrapolation from lower X-ray energies. Comparing this low state with previous higher states of the source, there is an indi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9712285","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9712285","created_at":"2026-05-18T01:40:14.597055+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9712285v1","created_at":"2026-05-18T01:40:14.597055+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9712285","created_at":"2026-05-18T01:40:14.597055+00:00"},{"alias_kind":"pith_short_12","alias_value":"U6SSIBRCLFMC","created_at":"2026-05-18T12:25:48.327863+00:00"},{"alias_kind":"pith_short_16","alias_value":"U6SSIBRCLFMCGJE7","created_at":"2026-05-18T12:25:48.327863+00:00"},{"alias_kind":"pith_short_8","alias_value":"U6SSIBRC","created_at":"2026-05-18T12:25:48.327863+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/U6SSIBRCLFMCGJE7E36I565I2T","json":"https://pith.science/pith/U6SSIBRCLFMCGJE7E36I565I2T.json","graph_json":"https://pith.science/api/pith-number/U6SSIBRCLFMCGJE7E36I565I2T/graph.json","events_json":"https://pith.science/api/pith-number/U6SSIBRCLFMCGJE7E36I565I2T/events.json","paper":"https://pith.science/paper/U6SSIBRC"},"agent_actions":{"view_html":"https://pith.science/pith/U6SSIBRCLFMCGJE7E36I565I2T","download_json":"https://pith.science/pith/U6SSIBRCLFMCGJE7E36I565I2T.json","view_paper":"https://pith.science/paper/U6SSIBRC","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/9712285&json=true","fetch_graph":"https://pith.science/api/pith-number/U6SSIBRCLFMCGJE7E36I565I2T/graph.json","fetch_events":"https://pith.science/api/pith-number/U6SSIBRCLFMCGJE7E36I565I2T/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/U6SSIBRCLFMCGJE7E36I565I2T/action/timestamp_anchor","attest_storage":"https://pith.science/pith/U6SSIBRCLFMCGJE7E36I565I2T/action/storage_attestation","attest_author":"https://pith.science/pith/U6SSIBRCLFMCGJE7E36I565I2T/action/author_attestation","sign_citation":"https://pith.science/pith/U6SSIBRCLFMCGJE7E36I565I2T/action/citation_signature","submit_replication":"https://pith.science/pith/U6SSIBRCLFMCGJE7E36I565I2T/action/replication_record"}},"created_at":"2026-05-18T01:40:14.597055+00:00","updated_at":"2026-05-18T01:40:14.597055+00:00"}